Journal ArticleDOI
Dispersion of Lamb waves in a honeycomb composite sandwich panel.
TLDR
Some of the useful properties of guided Lamb type waves are investigated, using analytical, numerical and experimental methods, in an effort to provide the knowledge base required for the development of viable structural health monitoring systems for composite structures.About:
This article is published in Ultrasonics.The article was published on 2015-02-01. It has received 65 citations till now. The article focuses on the topics: Lamb waves & Sandwich panel.read more
Citations
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Journal ArticleDOI
Time-reassigned synchrosqueezing transform: The algorithm and its applications in mechanical signal processing
TL;DR: In this article, a time-reassigned synchrosqueezing transform (TSST) was proposed for impulsive-like signal whose TF ridge curves is nearly parallel with the frequency axis.
Journal ArticleDOI
Identification of disbond and high density core region in a honeycomb composite sandwich structure using ultrasonic guided waves
Shirsendu Sikdar,Sauvik Banerjee +1 more
TL;DR: In this paper, a global matrix method based efficient and fast two dimensional (2D) semi-analytical model is used to study transient response and dispersion characteristics of the healthy HCSS under PWT excitations.
Journal ArticleDOI
Rayleigh to Lamb wave conversion at a delamination-like crack
TL;DR: In this paper, a detailed study of the interaction of Rayleigh surface waves with defects in a thick aluminum plate is carried out using numerical simulations and laboratory experiments, which are shown to partially result in Lamb wave conversion.
Journal ArticleDOI
A Fatigue Crack Size Evaluation Method Based on Lamb Wave Simulation and Limited Experimental Data.
TL;DR: The method consists of construction of a baseline quantification model using finite element simulation data and Bayesian updating with limited Lamb wave data from target structure to update the baseline model with a few measurements acquired from the actual target structure.
Journal ArticleDOI
Online detection of barely visible low-speed impact damage in 3D-core sandwich composite structure
Shirsendu Sikdar,Pawel Kudela,Maciej Radzieński,Abhishek Kundu,Wieslaw Ostachowicz,Wieslaw Ostachowicz +5 more
TL;DR: In this paper, the authors developed an advanced structural health monitoring framework to efficiently identify low-speed impact damages in 3D-core sandwich composites using ultrasonic guided wave propagation, which significantly magnifies the fundamental antisymmetric mode of the propagating signals.
References
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Book
Cellular Solids: Structure and Properties
Lorna J. Gibson,Michael F. Ashby +1 more
TL;DR: The linear elasticity of anisotropic cellular solids is studied in this article. But the authors focus on the design of sandwich panels with foam cores and do not consider the properties of the materials.
Book
Wave propagation in elastic solids
TL;DR: In this article, the linearized theory of elasticity was introduced and the elasticity of a one-dimensional motion of an elastic continuum was modeled as an unbound elastic continuum.